Two-loop light fermion contribution to Higgs production and decays

U. Aglietti; R. Bonciani; G. Degrassi; A. Vicini

Paper

Two-loop light fermion contribution to Higgs production and decays

Abstract

We compute the electroweak corrections due to the light fermions to the production cross section

and to the partial decay widths

and

. We present analytic results for these corrections that are expressed in terms of Generalized Harmonic Polylogarithms. We find that for the gluon fusion production cross section and for the decay width

the corrections are large in the Higgs mass region below 160 GeV where they reach up to 9% of the lowest order term. For the decay width

the corrections for Higgs mass above 160 GeV can reach

10% of the lowest order term.